From 45af3adab489498db283eef128045f2828d09b27 Mon Sep 17 00:00:00 2001
From: Simon Duquennoy <simonduq@sics.se>
Date: Tue, 20 Oct 2015 09:42:03 +0200
Subject: [PATCH] exp5438: do not use char as array index

---
 platform/exp5438/hal_lcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/platform/exp5438/hal_lcd.c b/platform/exp5438/hal_lcd.c
index 6445b8fed..66be62de9 100644
--- a/platform/exp5438/hal_lcd.c
+++ b/platform/exp5438/hal_lcd.c
@@ -792,7 +792,7 @@ void halLcdPrint(char String[], unsigned char TextStyle)
 
     while (String[i] != 0)                  // Stop on null character
     {
-        LookUpChar = fonts_lookup[String[i]];
+        LookUpChar = fonts_lookup[(unsigned char)String[i]];
 
         for (j = 0; j < FONT_HEIGHT; j++)
         {